hazardous vs hazard

hazardous is not a noun while hazard is a noun.

Word	Noun	Adjective	Verb	Adverb
hazardous	No	Yes	No	No
hazard	Yes	No	Yes	No

hazardous (noun)	hazard (noun)
	an obstacle on a golf course
	an unknown and unpredictable phenomenon that causes an event to result one way rather than another
	a source of danger; a possibility of incurring loss or misfortune

hazardous (adjective)	hazard (adjective)
involving risk or danger

hazardous (verb)	hazard (verb)
	put forward, of a guess, in spite of possible refutation
	take a risk in the hope of a favorable outcome
	put at risk